[PATCH v6 6/9] soc: mediatek: mmsys: instantiate mdp virtual device from mmsys
Eizan Miyamoto
eizan at chromium.org
Mon Aug 2 05:12:12 PDT 2021
A virtual device that is probed by the mtk_mdp_core driver is
instantiated by the mtk_mmsys driver.
This better reflects the logical organization of the hardware and
driver: there are a number of hardware blocks that are used by the MDP
that have no strict hierarchy, and the software driver is responsible
for driving them properly.
Signed-off-by: Eizan Miyamoto <eizan at chromium.org>
---
(no changes since v1)
drivers/soc/mediatek/mtk-mmsys.c | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c
index 080660ef11bf..e681029fe804 100644
--- a/drivers/soc/mediatek/mtk-mmsys.c
+++ b/drivers/soc/mediatek/mtk-mmsys.c
@@ -97,6 +97,7 @@ static int mtk_mmsys_probe(struct platform_device *pdev)
struct platform_device *clks;
struct platform_device *drm;
struct mtk_mmsys *mmsys;
+ struct platform_device *mdp;
int ret;
mmsys = devm_kzalloc(dev, sizeof(*mmsys), GFP_KERNEL);
@@ -122,10 +123,27 @@ static int mtk_mmsys_probe(struct platform_device *pdev)
PLATFORM_DEVID_AUTO, NULL, 0);
if (IS_ERR(drm)) {
platform_device_unregister(clks);
- return PTR_ERR(drm);
+ ret = PTR_ERR(drm);
+ goto err_drm;
+ }
+
+ mdp = platform_device_register_data(&pdev->dev, "mtk-mdp",
+ PLATFORM_DEVID_AUTO, NULL, 0);
+ if (IS_ERR(mdp)) {
+ ret = PTR_ERR(mdp);
+ dev_err(dev, "Failed to register mdp: %d\n", ret);
+ goto err_mdp;
}
return 0;
+
+err_mdp:
+ platform_device_unregister(drm);
+
+err_drm:
+ platform_device_unregister(clks);
+
+ return ret;
}
static const struct of_device_id of_match_mtk_mmsys[] = {
--
2.32.0.554.ge1b32706d8-goog
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